Answer:
= (-2,5)
Step-by-step explanation:
To Find:
Solution :
Referring the given graph
We can find the coordinates of 
and 
Coordinates of = (-7,1)
Coordinates of = (5,4)
Thus Coordinates of = (-7+5,1+4) = (-2,5)
Thus = (-2,5)
So, the point = (-2,5) is shown on the attached graph file
Answer:
A. -13
Step-by-step explanation:
y - (-5) is the same as y + 5
x - 8 = y + 5; you then subtract 5 from both sides
x - 13 = y
The answer is 5 because 10 divided by 2 is 5
A direct variation is a mathematical relationship between two variables that can be expressed by an equation in which one variable is equal to a constant times the other. In other words, a direct variation is where
.
In answer a,
, so it is a direct variation.
In answer c,
, so it is a direct variation.
In answer d,
, so it is a direct variation,
Only answer b is left, which means the answer must be 'b'.
We also know 'b' is the answer because it cannot be expressed as <span>
. Instead, it is expressed as </span>
, which is not the same thing and is therefore not a direct variation.
Hope I helped, and let me know if you have any questions :)
Answer:
442 miles
Step-by-step explanation:
Given
To properly solve this question, I illustrate some given parameters using attached image
From the image, apply Pythagoras theorem
Differentiate w.r.t time (t)
Divide both sides by 2
From the question, we have that the plan travels are 510mi/h.
This implies that:
So, we then calculate the value of x when the distance (y) is 2mi i.e.:
Apply Pythagoras theorem
So, the expression becomes:
<em>Hence, the distance is 442 miles</em>
